Fix upload unit tests

Author: silvanocerza

arduino/cores/packagemanager/loader.go

@@ -340,11 +340,11 @@ func (pm *PackageManager) loadPlatformRelease(platform *cores.PlatformRelease, p
 
 	// Create programmers properties
 	if programmersProperties, err := properties.SafeLoad(programmersTxtPath.String()); err == nil {
-		for programmerID, programmerProperties := range programmersProperties.FirstLevelOf() {
+		for programmerID, programmerProps := range programmersProperties.FirstLevelOf() {
 			if !platform.PluggableDiscoveryAware {
-				convertUploadToolsToPluggableDiscovery(programmersProperties)
+				convertUploadToolsToPluggableDiscovery(programmerProps)
 			}
-			platform.Programmers[programmerID] = pm.loadProgrammer(programmerProperties)
+			platform.Programmers[programmerID] = pm.loadProgrammer(programmerProps)
 			platform.Programmers[programmerID].PlatformRelease = platform
 		}
 	} else {

commands/upload/upload_test.go

@@ -194,6 +194,7 @@ func TestUploadPropertiesComposition(t *testing.T) {
 			outStream,
 			errStream,
 			false,
+			map[string]string{},
 		)
 		verboseVerifyOutput := "verbose verify"
 		if !verboseVerify {